Bob

Hi Chong , the porch is an unheated /uninsulated 6' x 16'.(and leaky old windows so yeah there's some air) I've overwintered plants before years ago with a very small ceramic heater but like I mentioned the bottoms of the pots froze. This year Im going to put a layer of foam insulation down as the floor and figured the oil heater( It's a new electric one with a thermostat that looks like my cast iron radiators)) might be best as it will get down to single digits if left unheated. What do you think?

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